Home / 10,621.18-15,934.20-4,047.40

Finding the Fourth Proportional to 10,621.18, 15,934.20 and 4,047.40

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Solution

The fourth proportional to 10,621.18, 15,934.20 and 4,047.40 is: 6,072.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.18 : 15,934.20 = 4,047.40 : x
  2. Step 2: Convert to fraction form
    10,621.18/15,934.20 = 4,047.40/x
  3. Step 3: Cross multiply
    10,621.18x = 15,934.20 × 4,047.40
  4. Step 4: Simplify right side
    10,621.18x = 64,492,081.08
  5. Step 5: Solve for x
    x = 64,492,081.08/10,621.18
  6. Step 6: Final answer
    x = 6,072.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.